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Valve Seat of a Pneumatic Hammer

a pneumatic hammer and valve seat technology, applied in the field of valve seats, can solve the problems of inability to provide the valve disk with a sufficient force to move back, the flow of compressed gas is too small to push the valve disk, and the gas passing through the two communicating tunnels cannot provide the valve disk with even forces to smoothly move back. to achieve the effect of improving the movement of the valve disk

Active Publication Date: 2020-07-30
LIAW JIAN SHIOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The purpose of this invention is to make the movement of a valve disk inside a valve seat more agile and flexible, so that the valve disk can move quickly and smoothly back and forth.

Problems solved by technology

However, the front valve plate only has two communicating tunnels and the compressed gas passing through the two communicating tunnels cannot provide the valve disk with a sufficient force to move back.
Moreover, the compressed gas passing through the two communicating tunnels cannot provide the valve disk with even forces to smoothly move back.
In addition, the annular space disposed between the cylinder and the main body is small, and thereby flow of the compressed gas is too small to push the valve disk.

Method used

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  • Valve Seat of a Pneumatic Hammer
  • Valve Seat of a Pneumatic Hammer
  • Valve Seat of a Pneumatic Hammer

Examples

Experimental program
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Effect test

Embodiment Construction

[0018]With reference to FIGS. 1 and 3, a valve seat in accordance with the present invention has a first valve plate 10, a second valve plate 20, a valve disk 30, and two pins 40.

[0019]With reference to FIGS. 3 and 4, the first valve plate 10 has a front side, a rear side, a circumjacent surface, an entrance groove 11, a first central passage 12, a first trough 13, two pairs of first dents 14, an exhaust tunnel 15, five exhaust channels 16, two fastening holes 17, and a first flow hole 18. The front side and the rear side of the first valve plate 10 are opposite each other. The entrance groove 11 is defined in the rear side of the first valve plate 10. The first central passage 12 is formed through the front side of the first valve plate 10 and communicates with the entrance groove 11. The first trough 13 is annularly formed in the front side of the first valve plate 10 and surrounds the first central passage12. Each pair of first dents 14 includes two first dents 14 formed in the c...

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Abstract

A valve seat has a first valve plate and a second valve plate detachably connected to the first valve plate. The first valve plate has a first trough and at least one pair of first dents, each pair including two first dents capable of respectively forming two first passages with a housing of a pneumatic hammer. The second valve plate has a second trough, at least one pair of second dents, at least one inlet tunnel, and at least two inlet channels. The second trough faces to and communicates with the first trough. Each pair of second dents includes two second dents capable of respectively forming two second passages with the housing. Each inlet tunnel is formed through the second valve plate and communicates with the two second passages. The at least two inlet channels communicate with the second trough and the at least one inlet tunnel.

Description

BACKGROUND OF THE INVENTION1. Field of the Invention[0001]The present invention relates to a pneumatic device, and more particularly to a valve seat being capable of increasing flow of compressed gas passing through the valve seat to make a valve disk agilely move within the valve seat.2. Description of Related Art[0002]A conventional pneumatic hammer capable of rapidly detaching and mounting a chisel as disclosed in Taiwan patent M568767 has a valve seat. With reference to FIGS. 2 and 5 of M568767, the valve seat has a rear valve plate, a front valve plate connected to the rear valve plate, and a valve disk disposed within the rear valve plate and the front valve plate. The valve disk 43 disposed within the rear valve plate 41 and the front valve plate 42 is driven by compressed gas to move reciprocatively.[0003]When the valve disk driven by compressed gas moves forward and blocks an outlet passage of the front valve plate, the compressed gas entering from an inlet passage of the r...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B25D9/16
CPCB25D9/16B25D2250/121B25D9/08
Inventor LIAW, JIAN-SHIOU
Owner LIAW JIAN SHIOU